I reworked one. I got it for free. I Reshape the stock, normal ramrod pipes with entry pipe, forend tip, replacement lock, bored out breech plug, opened up touch hole, and added a patch box. In the end I flipped it. The butt stock was just to weird for me. The butt plate is tiny there is no comb. The trigger guard sits on top of the wood, which also bothers me.
I put it in the same category as TC , CVA and other price point guns that do not respect traditional construction methods or architecture. In hindsight I could have saved a lot of time and left it alone. I could have given it to someone who might have had fun with it.
If you intend to shoot it you will want to open up the powder chamber in the plug. They use a super long plug with a long thin powder chamber. That design kills reliability.
IF you can get it cheap it may have entertainment value.